High Seas Forecast
Issued by NWS
Issued by NWS
328 FZPN01 KWBC 301536 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 1630 UTC SUN NOV 30 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT. ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE NATIONAL WEATHER SERVICE. EMAIL US AT VOSOPS@NOAA.GOV(LOWERCASE). PLEASE SEE PROPOSAL TO ALIGN NWS PACIFIC HIGH SEAS FORECASTS WITH METAREA XII: HTTPS://OCEAN.WEATHER.GOV/HIGHSEASPACIFICPROPOSAL/ (LOWERCASE). FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM). SECURITE PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT TO 50N 160E ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS SYNOPSIS VALID 1200 UTC NOV 30. 24 HOUR FORECAST VALID 1200 UTC DEC 01. 48 HOUR FORECAST VALID 1200 UTC DEC 02. .WARNINGS. ...HURRICANE FORCE WIND WARNING... .CONDITIONS DESCRIBED BELOW WITH FIRST STORM WARNING. .24 HOUR FORECAST LOW 38N163W 977 MB. WITHIN 180 NM SE AND S SEMICIRCLES WINDS 45 TO 60 KT. SEAS 6 TO 8.5 M. ELSEWHERE WITHIN 300 NM OF CENTER WINDS 30 TO 45 KT. SEAS 4.5 TO 6.5 M. ALSO S OF 43N BETWEEN 149W AND 175W WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. .30 HOUR FORECAST LOW 42N160W 974 MB. WITHIN 180 NM SE AND S SEMICIRCLES WINDS 50 TO 65 KT. SEAS 6 TO 8.5 M. .48 HOUR FORECAST LOW 54N165W 961 MB. WITHIN 360 NM SE SEMICIRCLE AND FROM 52N TO 64N BETWEEN 158W AND 180W WINDS 40 TO 55 KT. SEAS 4 TO 10 M...HIGHEST NEAR 54N176W AND 53N160W. ELSEWHERE N OF 30N BETWEEN 141W AND 169E WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M. ...STORM WARNING... .COMPLEX LOW WITH MAIN CENTER 40N179W 986 MB MOVING NE 25 KT AND SECOND CENTER 39N177E 987 MB MOVING E 30 KT. WITHIN 180 NM W QUADRANT OF FIRST CENTER AND 240 NM W AND SW QUADRANTS OF SECOND CENTER WINDS 40 TO 55 KT. SEAS 4.5 TO 7 M. ELSEWHERE S OF A LINE FROM 47N160E TO 42N177E TO 40N170W WINDS 25 TO 40 KT. SEAS 3 TO 6 M. .24 HOUR FORECAST LOW 47N169W 988 MB WITH SECOND CENTER DISSIPATED. FROM 43N TO 51N BETWEEN 156W AND 167W WINDS 30 TO 45 KT. SEAS 4 TO 7 M. ELSEWHERE FROM 43N TO 56N BETWEEN 150W AND 167W WINDS 20 TO 30 KT. SEAS 3 TO 6 M. .48 HOUR FORECAST LOW 51N172W 969 MB. CONDITIONS DESCRIBED ABOVE WITH LOW 54N165W. ...STORM WARNING... .LOW 55N150W 992 MB MOVING N 10 KT. N OF 50N BETWEEN 135W AND 156W WINDS 25 TO 40 KT. SEAS TO 3.5 M. .06 HOUR FORECAST LOW 58N150W 990 MB. N OF A FRONT FROM 58N152W TO 59N146W TO 58N140W WINDS 35 TO 50 KT. SEAS 3.5 TO 5.5 M. .24 HOUR FORECAST LOW 60N147W 999 MB. N OF 49N E OF 150W WINDS TO 25 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE S OF 50N BETWEEN 134W AND 150W WINDS LESS THAN 25 KT. SEAS TO 4 M IN MIXED SWELL. .48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS DIMINISHED. ...GALE WARNING... .LOW 50N176W 992 MB MOVING N 10 KT. EXCEPT WHERE DESCRIBED ABOVE...N OF 40N W OF 150W WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M. ELSEWHERE S OF 40N BETWEEN 146W AND 170W WINDS TO 25 KT. SEAS 3 TO 7 M...HIGHEST NEAR 38N162W. .24 HOUR FORECAST COMPLEX LOW WITH NEW MAIN CENTER 46N177W 980 MB AND SECOND CENTER 56N165W 990 MB. EXCEPT WHERE DESCRIBED ABOVE...BETWEEN 165E AND A LINE FROM 45N179W TO 65N157W AND S OF 45N BETWEEN 175W AND 163E WINDS 25 TO 40 KT. SEAS 3 TO 6 M. .48 HOUR FORECAST COMPLEX LOW DISSIPATED. ASSOCIATED CONDITIONS MERGED WITH LOW 54N165W DESCRIBED ABOVE. ...HEAVY FREEZING SPRAY WARNING... .MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF ALASKA. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 57N175E TO 60N174W TO 60N166W. .24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF ALASKA. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N AND NW OF A LINE FROM 55N173E TO 60N165W. .48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF ALASKA. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF ALASKA. .SYNOPSIS AND FORECAST. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN THE AREA BOUNDED BY A LINE FROM 47N172E TO 47N180W TO 54N157W TO 49N149W TO 43N144W TO 58N142W TO 60N167W TO 47N172E. .24 HOUR FORECAST DENSE FOG WITHIN 240 NM W AND NW OF A LINE FROM 44N180W TO 51N177W TO 60N165W. .48 HOUR FORECAST DENSE FOG WITHIN 240 NM W AND NW OF A LINE FROM 45N179W TO 49N173W TO 55N171W TO 59N164W. .FORECASTER JOSEPH. OCEAN PREDICTION CENTER. NWS NATIONAL HURRICANE CENTER MIAMI FL E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 1200 UTC SUN NOV 30. 24 HOUR FORECAST VALID 1200 UTC MON DEC 1. 48 HOUR FORECAST VALID 1200 UTC TUE DEC 2. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 30N129W TO 30N140W TO 28N140W TO 27N136W TO 27N133W TO 30N129W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .24 HOUR FORECAST WITHIN 30N134W TO 30N140W TO 20N140W TO 27N134W TO 30N134W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .48 HOUR FORECAST WITHIN 30N125W TO 30N140W TO 10N140W TO 13N134W TO 20N129W TO 30N125W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN NW SWELL. .WITHIN 18N114W TO 19N115W TO 18N118W TO 17N119W TO 16N118W TO 17N117W TO 18N114W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. .12 HOUR FORECAST CONDITIONS IMPROVE. .09 HOUR FORECAST WITHIN 23N106W TO 24N107W TO 23N107W TO 22N107W TO 22N106W TO 23N106W NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .21 HOUR FORECAST CONDITIONS IMPROVE. .09 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST LITTLE CHANGE. .33 HOUR FORECAST CONDITIONS IMPROVE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. CONVECTION VALID AT 1430 UTC SUN NOV 30... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH AXIS FROM 07N78W TO 09N106W TO 08N128W. ITCZ AXIS FROM 08N128W TO 06N140W. NUMEROUS MODERATE TO STRONG FROM 09N TO 21N BETWEEN 109W AND 118W. .FORECASTER KONARIK. NATIONAL HURRICANE CENTER. $$